Direct Current Verification - Tektronix DMM4020 Technical Reference Manual

DMM4020
Technical Reference
Nominal
Input
1.9 MΩ
0 MΩ
19 MΩ
0 MΩ
100 MΩ
[1] 5700 reading + resistance

Direct Current Verification

To verify the Amps DC function of the Meter, connect it to the test equipment as shown
in either Figure 3-4 or Figure 3-5 depending on current level and apply the current levels
listed in Table 3-6.
3-8
Table 3-5. 2-Wire Ohms Verification Steps (cont.)
90-Day Test Limit
Range
High
2 MΩ STD+0.00063 MΩ
20 MΩ 0.0006 MΩ
20 MΩ STD+0.0386 MΩ
100 MΩ 0.004 MΩ
100 MΩ STD+1.504 MΩ
Figure 3-4. Less than 2 Amps Direct and Alternating Current Test Setup
Low
[1] [1]
STD-0.00063 MΩ
-0.0006 MΩ
[1] [1]
STD-0.0386 MΩ
-0.004 MΩ
[1] [1]
STD-1.504 MΩ
1-Year Test Limit
High
[1]
STD+0.00084 MΩ STD-0.00084 MΩ
0.0006 MΩ -0.0006 MΩ
[1]
STD+0.0481 MΩ STD-0.0481 MΩ
0.004 MΩ -0.004 MΩ
[1]
STD+1.754 MΩ STD-1.754 MΩ
Low
[1]
[1]
[1]
gdb004.eps